Knockdown structure.



L. S. LACHMAN.

KNUCKDOWN STRUCTURE.

APPLICM'iGN FILED DEC.6, 2910.

1 03,207. Patented Oct. 31,1916

1 (fl/0411M WM a? a man I par'ts in the srreral views: Figure l is a' LAURENCE S. LACHMAN, OF NEW YORK, N. Y.

KNOCKDOWN STRUCTURE.

Specification of Letters Patent.

Patented Oct. 31, 1916.

Application filed December 6, 1910. Serial No. 595,956.

To 111/ whom it may con ern.

lic it known that l, Luna-moi: S. Lacun\.\', a cifizcn of the United States, and a ri-sidi-nt oi the city, county, and State of New York, have invented certain new and useful lmprorcnn-ntsin Knockdown Structurcs, of which the following is a sp'ecifica tion.

This invention relates to structuressuch as columns. poles, towers, masts, beams girders, concrctc reinforcements, ctc., unu

has for its main purpose the provision of a stun-lure of the kind stated wlnch'may be stored or transported in knockdown condi tion, readily and casily assembled for use, and when assembled 'will be strong and durable.

Other oibjccts and advantages of them- \iaition will appear from the hereinafter preferred embodiments description of the thereof. In thonaccompanying drawings, wherein like characters of reference designate like rertical sectional view of a part. of a structure en'ibndying the prcscnt Improvements,

showing: the sci'cral members assembled in tlu-ir' proper relative positions. Fig. 2' is a detail reprcscntation cxemplifying a specifcally different means for securing the parts together than those shown in Fig, 1. Fig. 3 is a detail representation exemplifying a specifically different means for securing the pai'ts together, than those of the preccding' figures.

The structure of the prcscnt invention cssentiallwincludes a plurality of longitudinal nu-Inhcrs. a plurality of connecting mcmhcrs thcrci'or, and kccpcrs for scouring said members togcthcr and maintaining the connecting momhcrs in a predetermined position upon the longitudinal menibers. In practice, thc l'ongitlulinal, members are relati ely disposed in positions which accord with thc shape of the structure which is to li( ]ll0(llltt'(l, and at distances apart dctcrmincd by the requirements oil such structurcs, and thc connecting-mcmhcrs are arranged along the dinal members maintained against displacement longitlnlinally keepers, which are of such clnu'actrr as to form seats therefor. The shape of the structurc in cross section may be round, angular or othcrwic, as desired; the connecting mcmbers extend around the same readily length of the longituof the latter by the in engagement with either the outer or innor surfaces of the longitudinal members; and thekeepers may be integral with the longitudinal members, or formed separate therefrom, as desired, and may be of arious characters, all as exemplified by the herein. illustrated embodiments of the invention; Tllcsefii're 'l ineralfeatn'res of the invention, particularfii important ones being that the partsbe oif'such correlative nature that they will form a structure of the kind herein set forth which may be stored or shipped in knock-down condition and in' compact space, andmay, quickly and asscmbled,l(at the place of use, if so desired) -and when "assembled may be quickly and rigidly secured together withoutwelding," riveting orother like means of fastenin i Variousgesirablc embodiments of the invention are exemplified in the and it is apparent that these will suggest otherswhich arecontemplated to be within the spirit of-tli invention and thescope of thc'subjoined claims.

Referring nowto' the drawings and particularly describing the forms of the invendrawmgs,

tion excm ilifiedby eachof the same: The

structure illustrated'in Figs. 1 and 2 is of skeleton nature and substantially circular in crossscetion. It is composed of a series of longitudinal strips, niarked 50, spaced a part and connected with each other at various places alongtheir lengths by ring marked at and 53, which also are spaced apart. The keepers or seats marked 52 are shown as formed by crimps or depressions in the longitudinal nicliibers 00. These receive the connecting members 51 and This figure exemplifies the use of round rods forflthe longitudinal members. Strctchers or'spacers marked may be removed when the parts are-assembled or wymay be permitted to remain as apermanentpar of the structurcf In Fig. 2, a furthercxcmplification of keepers intcgral w ith the longitudinal memmarkcd 43, which, as shown in dotted outline in said figure. is bent over the connecting member to hold the latter in its seat In Fig. 3 there 1i Sli0\\'11 a keeper, 72,

which is of hook form and is secured to the longitudinal member, marked 70, by entering its stem into an aperture in the latter. This keeper secures the connecting member, marked 71, by having its hook end extending over the latter. In practice. this keeper, preferably. is primarily a rod or bar secured to the longitudinal member by having its end suitably fastened in a recess of the latter. and is given this hook form after the parts have been asscmhlem its outer end being bent over the connecting member to secure the latter: but. if desired, it may be primarily of book town and be driven to place in the longitudinal member to secure the connecting member after the latter has been arranged in position on said longitudinal member. y

It is believed that the manner of assembling the parts and theadvantages of the invention will he apparent from the foregoing, but attention is called vto the fact that the longitudinal members may be kept in stock, or stored, with the keepers thereon and may be shipped in the quantity and of the length desired, with the connecting members. to the place of installation, where the structure may be quickly erected, it being only necessary there to assemble the members in their proper relative locations and secure them together by bending the ends of the keepers over the connecting members. This association of the parts and bending of the keepers obviously may be quickly and inexpensively done by labor possessing. no special skill. It will be noted that relative predetermined positions of the connecting members are indicated by the keepers and that said keepers will serve to support the connecting members while the parts are being assembled.

The reference herein to the structure as a knockdown one is founded upon the ease with which the parts may be put together, more particularly than to imply that it may be readily taken apart but it is apparent that it may be taken apart much more readily than would be possible if the parts \vere'integrally united or riveted together.

It will of course be understood that the invention is not restricted to the particular forms herein exemphlied. and that many other forms. structures and arrangement of parts contemplated to be within the spirit of the invention and the scope of the subjoined claims will readily suggest themselves;

Having now described the invention what I believe to be new and desire to secure by Letters Patent, is:

l. A knockdown structure for reinforcing concrete comprising oppositely disposed longitudinal members having groups of seats arranged respectively on opposite sides thereof and separable endless connecting members, each connecting member engaging a group of said seats.

knockdown structure for reinforcing concrete comprising oppositely disposed longitudinal members having groups of depressions arranged respectively on opposite sides thereof to form seats, separable curved connecting members arranged parallel to each other engaging a group of said seats.

3. A knockdown structure for reinforcing concrete comprising oppositely disposed lon gitudinal members having groups of depressions arranged respectively on opposite sides thereof adapted to form seats, separable rings engaging said seats on the outside and on the inside respectively of the longitudinal members.

In witness whereof I have hereunto set my haml at the city. county and State of New York. this 25tlrday ol xovember, 1910.

In presence of- I. R. ltionanns, A. t. ()tox .\1-;m.. 

